CN104126129B - Electrostatic spraying cable maintenance device - Google Patents
Electrostatic spraying cable maintenance device Download PDFInfo
- Publication number
- CN104126129B CN104126129B CN201380010006.0A CN201380010006A CN104126129B CN 104126129 B CN104126129 B CN 104126129B CN 201380010006 A CN201380010006 A CN 201380010006A CN 104126129 B CN104126129 B CN 104126129B
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- Prior art keywords
- cable
- wiring
- diode
- power supply
- line
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/053—Arrangements for supplying power, e.g. charging power
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/08—Detecting presence of flaws or irregularities
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0033—Apparatus or processes specially adapted for manufacturing conductors or cables by electrostatic coating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0036—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
Abstract
The present invention is for shortening the time needed for carrying out splitting the swap operation of cable.Electrostatic spraying cable (6) comprises provides power supply offer line (12) of power supply, the holding wire (14) being controlled high voltage controller (2), earth lead (16) to high-voltage generator (2).Utilize the first inspection wiring (18) to connect power supply and line (12) and earth lead (16) are provided, in addition, the second inspection wiring (20) is utilized to connect holding wire (14) and earth lead (16), then, first inspection wiring (18) is provided with the first diode (22), the first inspection wiring (20) is provided with the second diode (24).The first inspection wiring (18), the electric current of the second inspection wiring (20) are flow through in the prevention of first diode (22), the second diode (24) in the running of electrostatic atomizer (1).First checks that wiring (18), the second inspection wiring (20) and the first diode (22), the second diode (24) are built in the cable connection portion (8) linking adjacent segmentation cable (10).In the period that electrostatic atomizer (1) stops, applying the voltage checked to earth lead (16).
Description
Technical field
The present invention relates to electrostatic spraying, more specifically relate to the electrostatic spraying electricity that the bad position that is energized is detected
Cable attending device, this energising is bad to be comprised the high-voltage generator being comprised electrostatic atomizer and is arranged at paint booth
The open circuit of the cable that the control dish of (coating booth) outside is attached.
Background technology
Electrostatic spraying has the feature that and makes micronized coating electrified as is well known, makes the painting that this is charged
Material electricity attachment and coated article, therefore coating efficiency is preferable, is widely used in the application etc. of body of a motor car.In electrostatic spraying system
High voltage is indispensable, therefore to high-tension leakage, apply suitable voltage and implement various maintenance measure.
In order to tackle the high voltage leakage being attached with coating with the outer surface of electrostatic atomizer and produce in patent documentation 1
Problem, it is proposed that following technology: apply to prepare on electrode position separated by a distance reference at the high voltage with electrostatic atomizer
Electrode, based on the current value flowing through this reference electrode, it is predicted that charged coating particle is in and readily attaches to electrostatic spraying
During the state of owner's body, painting state is controlled, such as, controls the output of coating, stop applying high voltage, stopping quilt
The painting state moved into etc. of coat.
In order to improve the problem being attached with coating with the outer surface of electrostatic atomizer and produce in patent documentation 2, propose
Following technology: detection is flow through the high voltage comprising the built-in high-voltage generator of electrostatic atomizer and applied the electric current in path and shake
Width, when this current amplitude exceedes setting, the amplitude of integrating electric within a certain period of time, exceed setting at this aggregate-value
Time send alarm.
Patent documentation 3 is attached with painting in order to tackle with the outer surface of the electrostatic atomizer assembled in paint robot
The problem of the high voltage leakage expected and produce, it is proposed that following technology: make cable set on the end cap of electrostatic atomizer even
Knot is connected with wire, detects high voltage leakage by this wire.Additionally, patent documentation 3 discloses and is assembled in electrostatic
Control dish that coating machine is controlled the overall summary of attending device monitoring electrostatic atomizer, utilize this to save dress from damage
Put and monitor that the high-tension end cap putting on electrostatic atomizer controls whether suitable, various high voltage leakage etc..
Prior art literature
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 10-109054 publication
Patent documentation 2: Japanese Patent Laid-Open 2002-186884 publication
Patent documentation 3: Japanese Patent Laid-Open 2007-29920 publication
Summary of the invention
In the finishing system of body of a motor car, typically use the paint robot being arranged in paint booth.Paint robot
There is the electrostatic atomizer being built-in with high-voltage generator in the front end of its arm.Then, this electrostatic atomizer by cable with
The control dish being arranged at outside paint booth is connected, and utilizes control dish that the paint robot comprising electrostatic atomizer is performed control
System.The electrostatic spraying cable of control dish with electrostatic spraying mechatronics is included that the high voltage in being built in electrostatic atomizer is sent out
Raw device provides the power supply of power supply to provide wiring, many holding wires, earth leads, by this cable, electrostatic atomizer is performed control.
Sometimes control dish and electrostatic atomizer also across being spaced apart, can connect the electrostatic coat of control dish and electrostatic atomizer
Dress cable is typically constituted by being connected by many segmentation cable series connections.Such as constituted electrostatic spraying electricity by three segmentation cables
In the case of cable, between paint robot and control dish, it is configured with one first segmentation cable, in the inside of paint robot
Be configured with the second segmentation cable, the 3rd segmentation these 2, cable segmentation cable, these first~the 3rd segmentation cable in, the most mutually
Adjacent segmentation cable is connected by adapter each other.
When power supply that electrostatic spraying cable is comprised provides wiring, holding wire, earth lead generation problem, i.e., electrostatic coat
When the wiring that dress cable is comprised is as occurring open circuit, the resistance of this wiring becomes big, additionally, the action of electrostatic atomizer becomes not
Stable, accordingly, it is capable to known in electrostatic spraying cable by above-mentioned attending device and there occurs problem.Then, in order to tackle above-mentioned asking
Topic, implements the swap operation of electrostatic spraying cable.Certainly, the exchange of electrostatic spraying cable is when stopping paint line
Carry out.
The swap operation of electrostatic spraying cable is from the beginning of determining which segmentation cable there occurs problem.If can determine that this segmentation
Cable, then carry out the exchange of this segmentation cable.This series of swap operation is owing to entering when stopping paint line
OK, the most urgent because of this time.
It is an object of the invention to, it is provided that the electrostatic spraying electricity of a kind of swap operation required time that can shorten segmentation cable
Cable attending device.
For above-mentioned technical problem, can fill by providing a kind of electrostatic spraying cable maintenance according to first viewpoint of the present invention
Put and solve,
In this electrostatic spraying cable maintenance device, to being built-in with the electrostatic atomizer of high-voltage generator and to this electrostatic coat
The electrostatic spraying cable that the control dish that installation is controlled is electrically connected includes providing power supply to described high-voltage generator
Power supply provides line, holding wire, earth lead, and this electrostatic spraying cable maintenance device is for providing at the described power supply constituting this cable
Line or described holding wire, when entering the state before open circuit, determine the many segmentation cables constituting described electrostatic spraying cable
In, enter the segmentation cable of state before open circuit, it is characterised in that
In the many wirings constituting described power supply offer line, described holding wire, described earth lead, by described electrostatic spraying
Having 2 wirings of potential difference in the running of machine as one group, described 2 wirings constituting each group utilize inspection wiring phase
Connect,
In this inspection connects up, diode is installed, utilizes this diode to stop the operation at described electrostatic atomizer
In journey, electric current flows through between described 2 wirings,
Having bad segmentation cable and determine unit, this bad segmentation cable determines that unit stops fortune at described electrostatic atomizer
The period of row, this inspection wiring to 2 wirings connecting described each group applies voltage, to make current flow through this inspection wiring,
Detect the feedback signal returned from this each wiring of 2, before exception based on this feedback signal determines entrance open circuit
The segmentation cable of state,
Described inspection connects up with described diode arrangement in the cable connection portion connecting adjacent described segmentation cable.
For above-mentioned technical problem, can fill by providing a kind of electrostatic spraying cable maintenance according to second viewpoint of the present invention
Put and solve,
In this electrostatic spraying cable maintenance device, to being built-in with the electrostatic atomizer of high-voltage generator and to this electrostatic coat
The electrostatic spraying cable that the control dish that installation is controlled is electrically connected includes providing power supply to described high-voltage generator
Power supply provides line, holding wire, earth lead, and this electrostatic spraying cable maintenance device is for providing at the described power supply constituting this cable
Line or described holding wire, when entering the state before open circuit, determine the many segmentation cables constituting described electrostatic spraying cable
In, enter the segmentation cable of state before open circuit, it is characterised in that including:
First checks wiring, and this first inspection wiring connects described earth lead and described power supply provides line;
Second checks wiring, and this second inspection wiring connects described earth lead and described holding wire;
First diode, this first diode is installed on described first and checks wiring, in the operation of described electrostatic atomizer
During cut off and flow through described power supply the electric current between line and described earth lead is provided;
Second diode, this second diode is installed on described second and checks wiring, in the operation of described electrostatic atomizer
During cut off flow through the electric current between described holding wire and described earth lead;
Earthed switch, this earthed switch is arranged at described earth lead, can switch make this ground connection first mode and
Described earth lead is executed alive second pattern;And
Bad segmentation cable determines unit, and this bad segmentation cable determines that unit is out of service at described electrostatic atomizer
Period, when described switch is switched to described second pattern from described first mode, described earth lead is applied voltage
Time, detecting the feedback signal providing line and described holding wire to return from described power supply, exception based on this feedback signal is next
Determine the segmentation cable entering the state before open circuit,
Described first checks that wiring, the second inspection wiring and described first diode, the second diode arrangement are in connecting phase
In the cable connection portion of adjacent described segmentation cable.
Fig. 1 is the figure of the basic conception of the second viewpoint for the present invention is described.Reference numeral 1 represents electrostatic atomizer.
The paint robot that electrostatic atomizer 1 is set in being installed on paint booth, carries out the application of body of a motor car.Electrostatic atomizer 1
Built-in high-voltage generator 2 be connected with control dish 4 via electrostatic spraying cable 6.Electrostatic spraying cable 6 is as shown in Figure 2
It is made up of first connected by cable connection portion 8~the 3rd segmentation cable 10 like that, but the radical of segmentation cable 10 can be 2
Root, 4 etc..In order to determine segmentation cable 10, to the first segmentation cable marks NO.1, to the second segmentation cable marks NO.2, right
3rd segmentation cable marks NO.3.
With reference to Fig. 2, electrostatic spraying cable 6 comprises provides the power supply of power supply to provide line 12, to high electricity to high-voltage generator 2
Holding wire 14 that pressure controller 2 is controlled and earth lead 16.Checked that wiring 18 connection power supply provides line 12 and connects by first
Ground wire 16, additionally, checked wiring 20 connection holding wire 14 and earth lead 16 by second.Then, first installation in wiring 18 is checked
There is the first diode 22, the second inspection wiring 20 is provided with the second diode 24.First diode the 22, second diode 24 hinders
In the running of electrostatic atomizer 1, only flow through the electric current of first inspection wiring the 18, second inspection wiring 20.Thus, can be just
Often run electrostatic atomizer 1.
First checks that wiring the 18, first diode 22 is built in connection the first segmentation cable, the second segmentation cable 10
In the first cable connection portion 8 (NO.1) of (NO.1, NO.2).Second checks that wiring the 20, second diode 24 is built in connection the
In two the second cable connection portions 8 (NO.2) splitting cables, the 3rd segmentation cable 10 (NO.2, NO.3).
Control dish 4 is assembled with bad segmentation cable and determines unit 30.Bad segmentation cable determines unit 30 specifically
It is made up of high voltage controller IC, sends out before paint booth brings into operation, after end of run or in the operation of electrostatic atomizer 1
Wait not in the case of electrostatic atomizer 1 provides power supply during raw interruption, apply inspection voltage to earth lead 16.In order to
Release the ground state of earth lead 16 and earthed switch 32 is installed in earth lead 16, inspection voltage is being put on earth lead
Before 16, earthed switch 32 is switched to off-state.Bad segmentation cable determines that unit 30 is by applying inspection voltage
In earth lead 16, utilize and provide line 12 and the feedback signal i.e. voltage of holding wire 14 return, current value from power supply, which judges
Individual segmentation cable 10 (NO.1, NO.2, NO.3) there occurs problem.Checking of this electrostatic spraying cable 6 is based on user artificial
Operation performs or regulation moment in electrostatic atomizer 1 stopped process performs automatically.
Fig. 3 is illustrated the power supply of the 3rd segmentation cable 10 (No.3) and provides the situation that problem occurs in line 12.With reference to figure
3, the inspection voltage Vo putting on earth lead 16 was examined by the first inspection wiring 18, second before arriving electrostatic atomizer 1
Chubb line 20 and feed back to bad segmentation cable and determine unit 30.With R0Illustrate and be installed on first inspection wiring the 18, second inspection
The internal resistance of first diode the 22, second diode 24 in Chubb line 20.With being built in that power supply offer line 12 is associated
The synthesis internal resistance R of 2 the first diodes 22 of the total in first, second cable connection portion 8aIf ignoring and other correlating factor
Relation represent, then can obtain with following formula.
Ra=1/{ (1/R0)+(1/R0)=10 (2/R0)=R0/2
Thus, if the inspection voltage putting on earth lead 16 is set to V0, then the correlating factor with other is being ignored
In the case of relation, provide line 12 to return to bad segmentation cable by power supply and determine the feedback voltage V of unit 30aCan be with following formula
Represent.
Va=Ia R0/2
Above-mentioned Ia is current value.
It may be said that there is the situation essence phase of problem in the holding wire 14 of the 3rd segmentation cable 10 (No.3) in above-mentioned situation
With.
Fig. 4 is illustrated the power supply of the second segmentation cable 10 (No.2) and provides the situation that problem occurs in line 12.With reference to figure
4, put on the voltage of earth lead 16 before the second cable connection portion 8 (No.2) of arrival, by the first cable connection portion 8
(No.1) the first inspection wiring 18 returns to bad segmentation cable and determines unit 30.With the first cable connection portion 8 (No.1)
The internal resistance of the first diode 22 that the first inspection that power supply provides line 12 to be associated connects up 18 is above-mentioned R0, therefore, if neglecting
Slightly with the relation of other correlating factor, then the power supply in the second segmentation cable 10 (No.2) provides line 12 to occur during problem to return to
Bad segmentation cable determines the feedback voltage V of unit 30aCan be represented by the following formula.
Va=Ib R0
Above-mentioned Ib is current value.
Alternatively there is the situation essence of problem with the holding wire 14 of the second segmentation cable 10 (No.2) in above-mentioned situation
Identical.
It addition, determining that immediate first segmentation cable 10 (No.1) of unit 30 occurs problem with bad segmentation cable
Time, in order to make explanation simple, such as, if said with the example of a part complete open circuit of wiring of the first segmentation cable 10
Bright, then put on the inspection voltage of earth lead 16 and will not feed back to bad segmentation cable and determine unit 30.
Described above be by first~the 3rd segmentation cable 10 (No.1~No.3) any one open circuit in case of, and
And eliminate the impact of other correlating factor i.e. transformator etc. and the explanation that simplifies very much, provide line 12, holding wire at power supply
14 when wanting open circuit, owing to comprising the resistance of this circuit breaker part, therefore can not state feedback voltage with mathematical expression uniformly, always
It, when first~the 3rd split any one open circuit of cable 10 (No.1~No.3), this open circuit occurs to split cable first
Situation in 10 (No.1), the situation in the second segmentation cable 10 (No.2) that occurs, occur to split cable 10 the 3rd
(No.3) in the case of in, feed back to bad segmentation cable determine unit 30 signal (in above-mentioned example for feedback voltage V a) with
Time normal different (extremely).Then, by utilizing the magnitude of voltage difference (extremely) of this feedback voltage V a, can determine that and want dividing of open circuit
Cut cable.Current value can also be used as feedback signal.
Bad segmentation is fed back to when splitting some the generation problem in cable 10 for the clearest and the most definite first~the 3rd
Cable determines that the signal of unit 30 is (for the difference of feedback voltage V a) in above-mentioned example, it is also possible to check wiring 18 setting to first
Add resistance, check that wiring 20 arranges additional resistance to second, it is also possible to check that to first wiring 18, second checks wiring 20 pairs
Side arranges resistance.In the case of checking that to first wiring 18, second checks that wiring 20 both sides arrange resistance, the electricity being taken as
Resistance can be identical resistance value, it is also possible to be different resistance values.
Furthermore, it is possible to only the first inspection wiring 18 and/or second to the first cable connection portion 8 (No.1) checks cloth
Line 20 arranges above-mentioned additional resistance, can be only to the first of the second cable connection portion 8 (No.2) the inspection wiring 18 and/or the
Two check that wiring 20 arranges above-mentioned additional resistance, it is also possible to the first cable connection portion 8 (No.1), the second cable connection portion 8
(No.2) the first inspection wiring 18 and/or second that both sides are comprised checks that wiring 20 arranges above-mentioned additional resistance.
About the setting of the resistance value of this additional resistance, each additional resistance value is set the most as described below.
Such as, the resistance value of additional resistance is set so that such as feedback during generation problem is electric in the first segmentation cable 10 (No.1)
Feedback voltage when pressure Va becomes more normal than all segmentation cables 10 (No.1~No.3) wants high current potential, and, in the second segmentation
In cable, the 3rd segmentation cable 10 (No.2, No.3), feedback voltage V a during generation problem becomes than all segmentation cables 10
Feedback voltage when (No.1~No.3) is normal will be low current potential, and, generation problem in the second segmentation cable 10 (No.2)
Time with feedback voltage V a during generation problem in the 3rd segmentation cable 10 (No.3), clear and definite difference occurs.
It addition, in the example in the figures, earth lead 16 is illustrated as shared earth lead, but check via first
Connect up 18 earth leads providing line 12 to be connected with power supply and connect up 20 earth leads being connected with holding wire 14 also via the second inspection
Can be different.
For above-mentioned technical problem, can fill by providing a kind of electrostatic spraying cable maintenance according to the 3rd viewpoint of the present invention
Put and solve,
In this electrostatic spraying cable maintenance device, to being built-in with the electrostatic atomizer of high-voltage generator and to this electrostatic coat
The electrostatic spraying cable that the control dish that installation is controlled is electrically connected includes providing power supply to described high-voltage generator
Power supply provides line, flows through in the running of described electrostatic atomizer and the described power supply offer opposite polarity electric potential signal of line
Holding wire and earth lead, this electrostatic spraying cable maintenance device for constitute this cable described power supply provide line or
Holding wire described in person, when entering the state before open circuit, determines in the many segmentation cables constituting described electrostatic spraying cable
Enter the segmentation cable of state before open circuit, it is characterised in that including:
3rd checks that wiring, the 3rd inspection are routed in the running of described electrostatic atomizer and connect described holding wire
Line is provided with described power supply;
4th checks that wiring, the 4th inspection are routed in the running of described electrostatic atomizer and connect described holding wire
With described earth lead;
3rd diode, the 3rd diode is installed on the described 3rd and checks wiring, in the operation of described electrostatic atomizer
During cut off and flow through described power supply the electric current between line and described holding wire is provided;
4th diode, the 4th diode is installed on the described 4th and checks wiring, in the operation of described electrostatic atomizer
During cut off flow through the electric current between described holding wire and described earth lead;
Earthed switch, this earthed switch is arranged at described earth lead, can switch make this ground connection first mode and
Described earth lead is executed alive second pattern;And
Bad segmentation cable determines unit, and this bad segmentation cable determines that unit is out of service at described electrostatic atomizer
Period, when described switch is switched to described second pattern from described first mode, described holding wire is applied voltage
Time, detecting the feedback signal providing line and described earth lead to return from described power supply, exception based on this feedback signal is next
Determine the segmentation cable entering the state before open circuit,
Described 3rd checks that wiring, the 4th inspection wiring and described 3rd diode, the 4th diode arrangement are in connecting phase
In the cable connection portion of adjacent described segmentation cable.
According to the invention of the 3rd viewpoint, also can detect that earth lead wants the situation of open circuit.Additionally, the three or two pole can be utilized
Pipe, the 4th diode carry out properly functioning electrostatic atomizer.The action effect of the invention produced for the 3rd viewpoint, obtain employment people
Member can grasp by reading the explanation of embodiment described 2 below.
Accompanying drawing explanation
Fig. 1 is the figure of the overall summary of the electrostatic spraying cable maintenance device for the present invention is described.
Fig. 2 is the figure of the basic conception for the present invention is described.
Fig. 3 is for simplifying explanation in case of generation problem in the segmentation cable nearest from high-voltage generator
The Action Specification figure of the effect of the present invention.
Fig. 4 is for simplifying the work of the effect of the explanation present invention in case of generation problem in the second segmentation cable
Use explanatory diagram.
Fig. 5 is the figure of the overall summary of the electrostatic spraying cable maintenance device for the present invention is described.
Fig. 6 is first linking part (the first relaying box) of the electrostatic spraying cable maintenance device for embodiment 1 is described
The figure of internal structure.
Fig. 7 is second linking part (the second relaying box) of the electrostatic spraying cable maintenance device for embodiment 1 is described
The figure of internal structure.
Fig. 8 is first, second linking part (relaying box) of the electrostatic spraying cable maintenance device for embodiment 2 is described
The figure of internal structure.
Fig. 9 is first, second linking part (relaying box) of the electrostatic spraying cable maintenance device for embodiment 3 is described
The figure of internal structure.
Label declaration
1 electrostatic atomizer
2 high-voltage generators
4 control dishes
6 electrostatic spraying cables
8 cable connection portions
8 (No.1) first cable connection portion
8 (No.2) second cable connection portion
10 segmentation cables
10 (No.1) first segmentation cable
10 (No.2) second segmentation cable
10 (No.3) the 3rd segmentation cable
12 power supplys provide line
14 holding wires
16 earth leads
18 first check wiring
20 second check wiring
22 first diodes
24 second diodes
30 bad segmentation cables determine unit (high voltage controller IC)
32 earthed switches
Rad adds resistance
Detailed description of the invention
Below, based on accompanying drawing, the preferred embodiments of the present invention are illustrated.
Referring again to Fig. 1, in the electrostatic spraying cable maintenance device of embodiment, by using the first linking part 8, second even
Knot 8 (No.1, No.2) the two relaying box 40,42 is connected in series 3 segmentations cable 10 (No.1~No.3) and constitutes quiet
Electropaining dress cable 6.First linking part 8 (No.1) is specifically by the first relaying box 40 possessing the internal structure of diagram in Fig. 6
Constituting, the second linking part 8 (No.2) is specifically made up of the second relaying box 42 possessing the internal structure of diagram in Fig. 7.
Fig. 5 shows the high electricity that the electrostatic atomizer 1 of the electrostatic spraying cable maintenance device of Application Example is built-in
The structure of pressure generator 2.Reference numeral 38 shown in Fig. 5 represents paint robot.With reference to this Fig. 5, by the electrostatic coat of embodiment
Dress cable maintenance device is applied in the electrostatic atomizer of rotary-atomizing formula, and the high voltage that high-voltage generator 2 is generated applies
In the cup (bell cup) 44 as rotary atomization head.
High-voltage generator 2 includes pausing circuit (cockcroft-walton in transformator 46 and croft-Wal
Circuit) 48, by this croft-Wal pause circuit 48 boost after high voltage (such as the bearing 90,000 volts) quilt of negative polarity (bearing)
It is supplied to cup 44.In figure, reference marks 50 represents bleeder resistor.
High-voltage generator 2 provides line to connect as power supply and has 3 wirings 12, and as in the past, high voltage occurs
In device 2, it is connected with the earth lead 16 shared for controlling 3 holding wires 14 of this high-voltage generator 2.They pass through first
~the 3rd segmentation cable 10 (No.1~No.3) be connected with control dish 4.Then, when coming into question in electrostatic spraying cable 6,
In embodiment, unit (high voltage controller IC) 30 determines the to utilize the bad segmentation cable that is assembled in control dish 4 to determine
Which segmentation cable in one~the 3rd segmentation cable 10 (No.1~No.3) creates problem.
Embodiment 1 (Fig. 6, Fig. 7):
Fig. 6, Fig. 7 represent embodiment 1.Fig. 6 is the first relaying box 40 representing and constituting above-mentioned first linking part 8 (No.1)
The figure of internal structure, Fig. 7 is the figure of the internal structure of the second relaying box 42 representing and constituting above-mentioned second linking part 8 (No.2).
Reference numeral 54 shown in these Fig. 6, Fig. 7 represents adapter.
With reference to Fig. 6, Fig. 7, relaying in box 42 at the first relaying box 40, second, 3 power supplys provide line 12 to be utilized respectively first
Check that wiring 18 is connected with shared earth lead 16, additionally, 3 holding wires 14 are utilized respectively the second inspection wiring 20 and connect with sharing
Ground wire 16 is connected.Further, first check wiring 18, second to check in wiring 20 to be separately installed with the first diode 22, the
Two diodes 24, utilize these the first diode 22, second diodes 24 to stop electric current first when electrostatic atomizer 1 runs
Check that wiring 18, second checks in wiring 20 to flow.
With reference to above-mentioned Fig. 5 and Fig. 6, Fig. 7 of expression embodiment 1, symbol " CT ", " Dr.A ", " Dr.B " expression are supplied to
The power supply (positive voltage) of high-voltage generator 2.Symbol " μ AFB1 " represents and will flow through height in the running of electrostatic atomizer 1
The electric current of voltage generator 2 is converted into the signal after voltage, in the running of electrostatic atomizer 1, is somebody's turn to do the signal of " μ AFB1 "
Control dish 4 is fed back to the form of positive voltage.Symbol " kVFB " represents the high electricity of the i.e. negative polarity of output to high-voltage generator 2
Pressure carries out the signal of the negative voltage after blood pressure lowering, such as, when high-voltage generator 2 is output as negative 90,000 volts, " kVFB " is negative 90,000
Volt.Symbol " μ AFB2 " represents that the leakage current of the metal shell that would leak into encirclement high-voltage generator 2 is converted into the letter of negative voltage
Number.
Check that wiring 18, second checks in wiring 20 first, add resistance Rad respectively with diode 22,24 company of series connection
Connect.The side adding resistance Rad in Fig. 6, Fig. 7 describes concrete resistance value, but this concrete resistance value is based on experiment
Determine.
Specifically, the resistance value of above-mentioned additional resistance Rad sets as described below.I.e., the electricity of additional resistance Rad is set
Resistance so that feedback voltage V a during generation problem becomes than all segmentation cables 10 in the first segmentation cable 10 (No.1)
Feedback voltage when (No.1~No.3) is normal wants high current potential, and, second split cable, the 3rd segmentation cable 10 (No.2,
No.3) feedback voltage when feedback voltage V a during generation problem becomes more normal than all segmentation cables 10 (No.1~No.3) in
Current potential that will be low, and, in the second segmentation cable 10 (No.2) during generation problem with in the 3rd segmentation cable 10 (No.3)
There is clear and definite difference in feedback voltage V a during generation problem.
In order to when control dish 4 in the running of electrostatic atomizer 1 shows abnormal generation, open at electrostatic atomizer 1
In the stopped process of the electrostatic atomizer 1 waited before dynamic, find the exception of segmentation cable 8 or determine abnormal segmentation cable 8, holding
The electrostatic spraying cable maintenance device of row embodiment.Before this execution, disconnect with reference to the switch 32 illustrated by Fig. 2~Fig. 4, and
Cut off the ground connection sharing earth lead 16, this shared earth lead 16 is applied the inspection voltage of the most positive tens volts.
Electrostatic spraying cable maintenance device according to embodiment, as it has been described above, split cable 10 (No.1 first~the 3rd
~No.3) in some segmentation cable in the case of generation problem, this feedback voltage V a becomes and all segmentation cables 10
The current potential that feedback voltage when (No.1~No.3) is all normal is different.Then, this feedback voltage V a is according to first~the 3rd point
Cutting in which segmentation cable of cable 10 (No.1~No.3) occurs problem to have difference.Utilize this difference, by bad point
Cut cable determine unit (high voltage controller IC) 30 to determine generation problem first~the 3rd segmentation cable 10 (No.1~
No.3), additionally, it represents that display is in the monitor of control dish 4.As applying the most positive tens volts to shared earth lead 16
Inspection voltage time feedback signal, in addition to feedback voltage V a, it is also possible to utilize the difference of current value to detect first
~the 3rd segmentation cable 10 (No.1~No.3) which segmentation cable there occurs problem.
Operator, by observing the display of the monitor of control dish 4, can immediately know which segmentation cable has exception,
Can earlier electrostatic spraying cable 6 to be repaired by exchanging the segmentation cable 10 of the problem that creates immediately.
As it has been described above, when electrostatic atomizer 1 runs, first diode the 22, second diode 24 can be utilized to stop electricity
Stream flows through first inspection wiring the 18, second inspection wiring 20, thus can normally run electrostatic atomizer 1.
Embodiment 2 (Fig. 8):
Fig. 8 represents the internal structure relaying box 60 that embodiment 2 is comprised.Constitute above-mentioned first linking part 8 (No.1),
The relaying box 60 of two linking parts 8 (No.2) is of virtually identical structure.Relaying box 60 have when electrostatic atomizer 1 runs to
High-voltage generator 2 provides 3 power supplys of power supply (positive voltage) to provide line 12, share 16,3 holding wires 14 of earth lead.Electrostatic
When coating machine 1 runs, in 3 holding wires 14, feed back positive voltage by μ AFB1 alignment control dish 4, controlled by kVFB alignment
The voltage that dish 4 feedback is negative, by the voltage that μ AFB2 alignment control dish 4 feedback is negative.
In the relaying box 60,3 power supplys of positive voltage (in the running of electrostatic atomizer 1) provide lines 12, μ AFB1
Holding wire 14 and shared earth lead 16 check wiring 64 and negative voltage (electrostatic atomizer by the 3rd inspection wiring the 62, the 4th
In the running of 1) a certain of 2 holding wires 14 of μ AFB2, kVFB be connected.In the example of Fig. 8, carry as power supply
Dr.A line and shared earth lead 16 for line 12 check wiring 62 and as the negative voltage (fortune of electrostatic atomizer 1 via the 3rd
During row) the μ AFB2 line of holding wire 14 be connected, additionally, provide the CT line of line 12, Dr.B line and positive electricity as power supply
The μ AFB1 holding wire 14 of pressure (in the running of electrostatic atomizer 1) checks wiring 64 and as negative voltage (electrostatic via the 4th
In the running of coating machine 1) the kVFB line of holding wire 14 be connected.As variation, such as CT power supply can be provided
Line 12 is connected with μ AFB2 holding wire 14, it is also possible to be connected with kVFB holding wire 14 by shared earth lead 16.Of course, it is possible to
Dr.A power supply offer line 12 is connected with kVFB holding wire 14, it is also possible to by holding wire 14 and the μ AFB2 holding wire 14 of μ AFB1
It is connected.
Then, check that wiring the 62, the 4th checks in wiring 64 the 3rd to be provided with in the running of electrostatic atomizer 1
Stop electric current to flow through the 3rd inspection wiring the 62, the 4th and check the diode 66,68 of wiring 64, furthermore it is preferred that make to add resistance Rad
It is connected in series with above-mentioned diode 66,68.Check that with the 3rd wiring the 62, the 4th checks and connect up the 64 additional resistance Rad's being connected
Resistance value is any.As illustrated by above-described embodiment 1, so that the first segmentation cable 10 (No.1), the second segmentation cable
Feedback voltage V a when 10 (No.2) or the 3rd split generation problem in cable 10 (No.3) produces the mode of clear and definite difference and sets
The fixed additional resistance R checking that with the 3rd wiring the 62, the 4th inspection wiring 64 is connectedadResistance value.
In this embodiment 2 identical with above-described embodiment 1, in order in control dish 4 in the running of electrostatic atomizer 1
Display is abnormal when occurring, in the stopped process of electrostatic atomizer 1 before electrostatic atomizer 1 starts etc., find segmentation cable 8
Exception or determine abnormal segmentation cable 8, performs the electrostatic spraying cable maintenance device of embodiment.Before this execution, disconnected
Open with reference to the switch 32 illustrated by Fig. 2~Fig. 4, and cut off the ground connection sharing earth lead 16, then, in the fortune of electrostatic atomizer 1
During row, the μ AFB2 line of negative voltage, 2 holding wires 14 of kVFB line are applied the inspection voltage of the most positive tens volts.
According to this embodiment 2, comprise shared earth lead 16 and want the situation of open circuit, as it has been described above, split first~the 3rd
In certain segmentation cable in cable 10 (No.1~No.3) in the case of generation problem, this feedback voltage V a becomes and all points
Cut cable 10 (No.1~No.3) all normal time the different current potential of feedback voltage.Then, this feedback voltage V a is according to first
~the 3rd segmentation cable 10 (No.1~No.3) which segmentation cable in occur problem and produce difference.Utilize this difference,
Determined that unit (high voltage controller IC) 30 splits cable 10 to first~the 3rd determining generation problem by bad segmentation cable
(No.1~No.3), additionally, it represents that display is in the monitor of control dish 4.Then, operator are by observing control dish 4
The display of monitor, can immediately know which segmentation cable has exception, the segmentation of problem can be created by replacing immediately
Cable 10 repairs electrostatic spraying cable 6 earlier.
In this embodiment 2, as the inspection applying the most positive tens volts at 2 holding wires 14 to μ AFB2 line, kVFB line
Look into by feedback signal during voltage, in addition to feedback voltage V a, it is also possible to utilize the difference of current value to detect first~the
Which segmentation cable of three segmentations cable 10 (No.1~No.3) there occurs problem.
In this embodiment 2, as it has been described above, in the running of electrostatic atomizer 1, diode 66,68 can be utilized
Stop electric current to flow through the 3rd inspection wiring the 62, the 4th and check wiring 64, therefore can normally run electrostatic atomizer 1.
Embodiment 3 (Fig. 9):
Fig. 9 represents the internal structure relaying box 70 that embodiment 3 is comprised.Constitute above-mentioned first linking part 8 (No.1),
The relaying box 70 of two linking parts 8 (No.2) is of virtually identical structure, and the relaying box 70 comprised in this embodiment 3 is above-mentioned reality
Execute the variation of example 2 (Fig. 8).
With reference to Fig. 9, the Dr.B line 12 of line 12 is provided to utilize the 3rd inspection wiring 62 and as negative voltage (electrostatic as power supply
In the running of coating machine 1) the kVFB line of holding wire 14 be connected, the 3rd checks that wiring 62 is connected with diode 66
Connect, and preferably connect resistance Rad.Additionally, provide the CT line of line 12 to check line 72 and shared earth lead via the 5th as power supply
16 are connected, and the 5th checks that aobvious 72 are connected with diode 74, and is preferably connected in series resistance Rad.Other structure and reality
Execute example 2 (Fig. 8) identical.
In order to make practitioner be understood that the explanation of above embodiment, the present invention demonstrates as follows.That is, there is current potential
2 wirings of difference (in the running of electrostatic atomizer 1) utilize the inspection wiring with diode to be connected, by this inspection
Chubb line arranges diode, stops in the running of electrostatic atomizer 1, flow through the electric current checking wiring.Thus, if
There is potential difference in 2 wiring current potentials of positive potential in the running of electrostatic atomizer 1, then these 2 wirings can utilize tool
The inspection wiring having diode is connected.Equally, if in the running of electrostatic atomizer 12 of nagative potential wiring current potentials
There is potential difference, then these 2 wirings can utilize the inspection wiring with diode to be connected.Then, transport at electrostatic atomizer 1
During row stops, by checking in 2 wirings that wiring connects, by the relative potentials (running of electrostatic atomizer 1
In) relatively low wiring applies voltage (diode is applied forward voltage), can detect the bad of each wiring.
Present invention can apply to the electrostatic atomizer of rotary-atomizing formula, jet printing type.It is coated with additionally, present invention can apply to liquid
Material, powder coating electrostatic atomizer in.The present invention, in addition to utilizing diluent as the coating of solvent, can also apply to lead
In the electrostatic atomizer of conductive liquid coating (specifically water paint).
Claims (6)
1. an electrostatic spraying cable maintenance device,
In this electrostatic spraying cable maintenance device, to being built-in with the electrostatic atomizer of high-voltage generator and to this electrostatic atomizer
The electrostatic spraying cable that the control dish being controlled is electrically connected includes the power supply providing power supply to described high-voltage generator
Thering is provided line, holding wire and earth lead, this electrostatic spraying cable maintenance device is for determining bad segmentation cable, its feature
It is,
In the many wirings constituting described power supply offer line, described holding wire and described earth lead, by described electrostatic spraying
Having 2 wirings of potential difference in the running of machine as one group, described 2 wirings constituting each group utilize inspection wiring phase
Connect,
In this inspection connects up, diode is installed, utilizes this diode to stop in the running of described electrostatic atomizer
Electric current flows through between described 2 wirings,
Having bad segmentation cable and determine unit (30), this bad segmentation cable determines that unit stops fortune at described electrostatic atomizer
The period of row, this inspection wiring to described 2 wirings connecting each group applies voltage, to make current flow through this inspection wiring
(18,20,62,64), detect the feedback signal (Va) returned from this each wiring of 2, based on this feedback signal (Va)
Extremely the segmentation cable (10) of the state before open circuit that enters is determined,
Described inspection wiring (18,20,62,64) and described diode (22,24,66,68) are configured at and connect adjacent described point
Cut in the cable connection portion (8) of cable (10).
2. electrostatic spraying cable maintenance device as claimed in claim 1, it is characterised in that
Described inspection in wiring is provided with resistance, and this resistance is connected with described Diode series.
3. an electrostatic spraying cable maintenance device,
In this electrostatic spraying cable maintenance device, to being built-in with the electrostatic atomizer of high-voltage generator and to this electrostatic atomizer
The electrostatic spraying cable that the control dish being controlled is electrically connected includes the power supply providing power supply to described high-voltage generator
Thering is provided line, holding wire, earth lead, this electrostatic spraying cable maintenance device is for determining bad segmentation cable, it is characterised in that
Including:
First checks wiring, and this first inspection wiring connects described earth lead and described power supply provides line;
Second checks wiring, and this second inspection wiring connects described earth lead and described holding wire;
First diode, this first diode is installed on described first and checks wiring, at the running of described electrostatic atomizer
Described power supply is flow through in middle cut-out provides the electric current between line and described earth lead;
Second diode, this second diode is installed on described second and checks wiring, at the running of described electrostatic atomizer
The electric current between described holding wire and described earth lead is flow through in middle cut-out;
Earthed switch, this earthed switch is arranged at described earth lead, can switch and make the first mode of this ground connection and to institute
State earth lead and execute alive second pattern;And
Bad segmentation cable determines unit, and this bad segmentation cable determines that unit is in described electrostatic atomizer phase out of service
Between, when described earthed switch is switched to described second pattern from described first mode, described earth lead is applied electricity
During pressure, detect the feedback signal providing line and described holding wire to return from described power supply, exception based on this feedback signal
Determine the segmentation cable entering the state before open circuit,
Described first checks that wiring and described second checks wiring and described first diode and described second diode arrangement
In the cable connection portion connecting adjacent described segmentation cable.
4. an electrostatic spraying cable maintenance device,
In this electrostatic spraying cable maintenance device, to being built-in with the electrostatic atomizer of high-voltage generator and to this electrostatic atomizer
The electrostatic spraying cable that the control dish being controlled is electrically connected includes the power supply providing power supply to described high-voltage generator
Line is provided, flows through in the running of described electrostatic atomizer and the letter of the described power supply offer opposite polarity electric potential signal of line
Number line and earth lead, this electrostatic spraying cable maintenance device is for determining bad segmentation cable, it is characterised in that including:
3rd checks that wiring, the 3rd inspection are routed in the running of described electrostatic atomizer and connect described holding wire and institute
State power supply and line is provided;
4th checks that wiring, the 4th inspection are routed in the running of described electrostatic atomizer and connect described holding wire and institute
State earth lead;
3rd diode, the 3rd diode is installed on the described 3rd and checks wiring, at the running of described electrostatic atomizer
Described power supply is flow through in middle cut-out provides the electric current between line and described holding wire;
4th diode, the 4th diode is installed on the described 4th and checks wiring, at the running of described electrostatic atomizer
The electric current between described holding wire and described earth lead is flow through in middle cut-out;
Earthed switch, this earthed switch is arranged at described earth lead, can switch and make the first mode of this ground connection and to institute
State earth lead and execute alive second pattern;And
Bad segmentation cable determines unit, and this bad segmentation cable determines that unit is in described electrostatic atomizer phase out of service
Between, when described earthed switch is switched to described second pattern from described first mode, described holding wire is applied electricity
During pressure, detect the feedback signal providing line and described earth lead to return from described power supply, exception based on this feedback signal
Determine the segmentation cable entering the state before open circuit,
Described 3rd checks that wiring and the described 4th checks wiring and described 3rd diode and described 4th diode arrangement
In the cable connection portion connecting adjacent described segmentation cable.
5. electrostatic spraying cable maintenance device as claimed in claim 4, it is characterised in that
Described electrostatic spraying cable provides line polarity except flowing through in the running of described electrostatic atomizer with described power supply
Beyond the holding wire of contrary electric potential signal, it is additionally included in the running of described electrostatic atomizer to flow through and carries with described power supply
Supply the secondary signal line of the electric potential signal that line polarity is identical,
Electrostatic coating cable maintenance device is also equipped with:
5th inspection connects up, and the 5th checks that wiring connects described secondary signal line and flows through and described power supply offer line polarity phase
The holding wire of anti-electric potential signal;And
5th diode, the 5th diode is installed on the 5th inspection wiring, for being breaking at the fortune of described electrostatic atomizer
During row described secondary signal line and flow through with described power supply provide the opposite polarity electric potential signal of line holding wire between
The electric current flow through.
6. electrostatic spraying cable maintenance device as claimed in claim 5, it is characterised in that
Described 5th checks that in wiring, described 5th diode is connected with additional resistant series.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012034570 | 2012-02-20 | ||
JP2012-034570 | 2012-02-20 | ||
JP2012209496A JP5162723B1 (en) | 2012-02-20 | 2012-09-24 | Electrostatic paint cable maintenance device |
JP2012-209496 | 2012-09-24 | ||
PCT/JP2013/053831 WO2013125478A1 (en) | 2012-02-20 | 2013-02-18 | Electrostatic coating cable maintenance device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104126129A CN104126129A (en) | 2014-10-29 |
CN104126129B true CN104126129B (en) | 2016-08-17 |
Family
ID=48013624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201380010006.0A Expired - Fee Related CN104126129B (en) | 2012-02-20 | 2013-02-18 | Electrostatic spraying cable maintenance device |
Country Status (5)
Country | Link |
---|---|
US (1) | US9412500B2 (en) |
EP (1) | EP2818880A4 (en) |
JP (1) | JP5162723B1 (en) |
CN (1) | CN104126129B (en) |
WO (1) | WO2013125478A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105158662A (en) * | 2015-09-08 | 2015-12-16 | 国家电网公司 | Intelligent power cable on-line power-frequency voltage-withstand testing apparatus |
CN109979371A (en) * | 2019-04-15 | 2019-07-05 | 武汉华星光电技术有限公司 | A kind of display panel and device |
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- 2013-02-18 US US14/379,499 patent/US9412500B2/en active Active
- 2013-02-18 EP EP13751202.6A patent/EP2818880A4/en not_active Withdrawn
- 2013-02-18 WO PCT/JP2013/053831 patent/WO2013125478A1/en active Application Filing
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CN2093044U (en) * | 1990-11-27 | 1992-01-15 | 俞才富 | Double control type high voltage electrostatic generator |
CN2144029Y (en) * | 1992-08-07 | 1993-10-20 | 中国石油天然气总公司工程技术研究所 | Electrostatic powder spray gun |
CN2198980Y (en) * | 1994-11-16 | 1995-05-31 | 杜志源 | Double-gun split-combined plastics-jetting host machine |
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Also Published As
Publication number | Publication date |
---|---|
JP2013200294A (en) | 2013-10-03 |
JP5162723B1 (en) | 2013-03-13 |
EP2818880A1 (en) | 2014-12-31 |
CN104126129A (en) | 2014-10-29 |
EP2818880A4 (en) | 2015-12-09 |
WO2013125478A1 (en) | 2013-08-29 |
US9412500B2 (en) | 2016-08-09 |
US20150027370A1 (en) | 2015-01-29 |
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